# OpenAthena vs PerchLens

The clearest difference is update cadence: PerchLens at every 3 weeks against OpenAthena's every 2 months. PerchLens also leads on iOS requirement (12.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

OpenAthena ships an update every 2 months, PerchLens every 3 weeks. The most recent releases landed on September 20, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | OpenAthena | PerchLens |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.9 (304 ratings)](https://appshunter.io/ios/app/perchlens/id6473670884/reviews)** |
| Number of ratings | — | **304** |
| Positive reviews | — | 12.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 74 MB | 201 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Robert Krupczak](https://appshunter.io/developer/1686231817) | [POCKET INC](https://appshunter.io/developer/1717359545) |

## What reviewers say

### OpenAthena

[App page](https://appshunter.io/ios/app/openathena/id6448763554)

**Features:** macOS Compatibility

**In-app purchases:** none


### PerchLens

[App page](https://appshunter.io/ios/app/perchlens/id6473670884)

This app enhances bird watching by integrating camera technology with bird feeders to capture images of visiting birds. It offers enthusiasts an innovative way to observe and engage with local wildlife.

**Highlights:** Camera-enabled bird feeder, Captures images of visiting birds, Innovative nature engagement, High-tech bird watching, Feathered friends observation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 👍 Works well
- 🚀 Feeder works perfectly
- 👍 Accurate AI recognizer

**What reviewers complain about**

- 🐛 Motion detection too sensitive
- 🐛 Difficult to set up
- 🐛 Unreliable connection
- 🐛 Inaccurate AI bird identification
- 🐛 Camera quality issues

**Reported bugs**

- Inconsistent video recording and storage
- Inability to connect to Wi-Fi
- Login and account issues
- Compatibility problems with newer OS versions

**Requested features**

- Option to turn off AI bird identification
- Improved squirrel deterrent features
- Ability to share videos and photos
- Compatibility with smart home platforms
- Better battery life management


## Frequently asked questions

### Is OpenAthena free?

OpenAthena is free to download, with no in-app purchases.

### Is PerchLens free?

PerchLens is free to download, with no in-app purchases.

### Do OpenAthena or PerchLens have ads?

Neither OpenAthena nor PerchLens shows ads.

### Which is updated more often, OpenAthena or PerchLens?

OpenAthena ships an update every 2 months, and PerchLens every 3 weeks. Most recently, OpenAthena was updated on September 20, 2026 and PerchLens on September 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*